Address lookup table

Advanced voice communication feature transparency in a...

Agent-initiated dynamic requeing

AIN service delivery and programmability over the internet

Allocating processing resources for multiple instances of a...

Allocation of channel capacity in multiservice networks

Alternate telephone call routing system

Alternative network service for video conferencing applications

Analog gateway

Analysis of VoIP data using incomplete call information

ANI-dormant connections for frame relay

Animated audio messaging

Anonymous call rejection

Apparatus and method for a remote access server

Apparatus and method for a telephony gateway

Apparatus and method for a telephony gateway

Apparatus and method for a voice portal

Apparatus and method for AAL2 packet switching on an ATM...

Apparatus and method for accessing wireless trunks on a...

Apparatus and method for communicating time-division...